Blind for straight openings



Nov. 20, 1956 F. .1. BARoNl BLIND FOR STRAIGHT oPENINGs 3 Sheets-Sheet 1 Filed June 28, 1954.

1NVENT0R ATTORNEYS F. J. L.. BARONE BLIND FOR STRAIGHT OPENINGS Nov. Z, i956 Filed' June 28, 1954 3 Sheets-Sheet 2 INVENTOR www ATTORNEYb` Nov, 20, 1956 F. J. L. BARoNl IND FOR STRAIGHT OPENINGS 5 Sheets-Sheet 5 Filed June 28, 1954.

INVENTOR FRANC/$00 JOSE' LTTNZ/ @ARONI ATTORNEYS United States Patent() Fice BLIND FOR STRAIGHT OPENINGS Francisco Jose Lattanzio Baroni, Buenos Aires, Argentina Application June 28, 1954, SerialNo. 439,823

3 Claims. (Cl. 1611-115) The invention relates to a new blind, which can be applied to a straight opening, and it consists of a number of movable sla-ts that permit the passage of light and air through the blind.

The principal object of this blind is that its horizonal extension can vary, that is to say, it can cover part of the opening or all of the opening to which it is applied.

Another object of ythis invention is that the slats of the blind extend longitudinally, and on being extended remain in the form of a stairs. In the same manner, on drawing back the slats, they also remain in the form of a stairs.

Another object of this invention, as well as tha-t of extending or shortening the length of the slats to vary the width of the blind, is that the inclination of said slats can also vary in order to regulate the passage of air and light through the blind or to prevent the entrance of air and light.

Another object of this invention is that the slats can be piled up in one part or section of the blind so -that they can be hidden from view in the wall, and in this manner leave the opening of the window completely free.

In order that this invention may be fully understood, reference will now be made to the drawings, in which: Fig. l is an elevation of the blind when completely closing the corresponding opening to which it has been applied; this fgure also shows the operating mechanism that slides the blind horizontally and varies the inclination of the slats,

Fig. 2 is a horizontal view partly in section showing the blind in the position of Fig. 1; also showing an opening in a wall to hold the operating mechanism and to receive and hide the blind within the opening when it is drawn back,

Fig. 3 is a transverse section showing the blind drawn back and the slats piled up in one section and how the slats remain in groups overlapping each other, in this case in groups of three, as said blind has only three sections,

Fig. 4 is a front elevation showing the window cornpletely open and all the slats arranged outside the opening of the win-dow, but within the cavity formed in the wall for this object,

Fig. 5 is an elevation that shows the operating mechanism, in vertical section, by which the slats are operated to vary their position from the closed position A to open position B,

Fig. 6 is a front elevation that shows the blind with the slats completely closed,

Fig. 7 is an elevation partly in section of the blind as it is when it is extended,

Fig. 8 is an elevation partly in section of the blind when it is drawn back,

Fig. 9 is a top plan view of one of the slats,

Fig. 10 is an end view of Fig. 9,

Fig. 1-1 is an elevation partly in section showing the rotary connection of the slats with each other; `also show- 2,771,134 Patented Nov. 20, 1956 ing the connecting link which is established between .the

top slat and the one which remains below, and

Fig. 12 is a transverse View of two slats showing the rotary connecting link and slide.

1 designates metallic slats made of Duralumin or any other appropriate metal or material, slightly curved, having a convex shape on top and a concave shape underneath. These slats of a substantially rectangular shape have on each side borders 2 formed with a cylindrical cavity 3 and with a longitudinal opening 4. The part 5 at one end is provided with a peripheral groove 6. At the other end are provided connecting links 7 that are hollow and have a longitudinal opening 4 and a peripheral groove 8. Y

9, 9a, 9b, and 9c designate vertical supports that hold the slats and are provided with bushings 10 that engage the grooves 8 by the ridges 11.

12 designates a slidable connection between two slats 1 which on one of its sides is provided with a cylindrical border and at its ends is provided with a cylindrical connecting link 13. In its center the slide 12 has a cylindrical projection 14 which lies in a parallel line to link 13 and has a peripheral groove so that it can be retained in the connecting .link 15 through the corresponding projection 6, which permits it to rotate freely on its axle. In this manner the slidable connection 12 can run longitudinally along the corresponding opening 4 guided by its' link 13 within cavity 3 of the side borders of the slats 1. l

16 designates a connecting member between supports 9, 9a, 9b, and 9c and the slidable member 17 that engages the balls 18 on the guides 19 on both sides of opening 241. Said openings are formed longitudinally in the back face of the hollow support box 21 of rectangular section, which in its interior has a cavity 22 in which are located the guides 1.9 in which slidable members 17 engage with the balls 18 One of the smaller sides of the box 21 is supported by small plates 23. Said box 2l is also supported by an operating axle 24 that is mounted revolubly in the corresponding anchorage supports 25 that are embedded in the wall.

Gear 26 carried by the axle 24 engages gear 27 fastened to axle 28 that is provided with a pulley 29 that is revolved by a transmission band 30. Another pulley 31 is provided with an operating crank 32 to vary inclination of slats 1.

33 designates a cable or cord that it used to draw back or extend slats 1 longitudinally. This cord is guided by four grooves pulleys 34, two of which are provided with cranks 35 and 36 to make the cord run from one side to the other of the opening. The pair of sup ports 9 are connected to said cord 33 and to support 9c by crossbar 37 ('Fig. 6) so that by operating crank 35 slats 1 are pulled in and drawn back as can be seen on Fig. 4- By turning crank 36 the cord 33, by means of the crossbar that holds the last pair of vertical supports that support slats 1, pulls the blind until the opening to which it is applied is partially or totally closed.

38 -designates the wall with opening 39 to which the blind is applied. This opening has a frame 40 and glass panes 41, as any ordinary window, but at one or both sides it has cavities 42 and 43 in which to receive the blind once it is `drawn back and also in which to place the corresponding operating mechanism.

44 designates covers for the openings in which the operating mechanism is placed.

This system can be made to operate by applying the oscillation axle 24 to the middle of box 21, as in Fig. 3, so as to vary the inclination from right to left, or, in accordance with Fig. 5, so as to vary the inclination only in one direction.

The blind with its slats drawn back is, as shown in Figs. 4 and 8. `Crank36 'is rotated so that the cord 33 through connection 37 pulls the pair of vertical supports 9c to the right. Y In this manner, on pulling in slats 1 of the last section, by bushings 10 and connecting links 7', the slats that are united by their connecting links S to the cylindrical projection 4 of slides 12 slide in a longitudinal manner towards the right.

When slides 12 run against bushings 10 of supports 9c, they pull the slats of the next section, repeating the same operationin all following sections until opening 39 is completely closed.

To vary the inclination of the slats when the blind is totally extended, crank 32 is operated so that the operating mechanism rotates axle 24, as can be seen in Fig. 5. In this manner, the inclination may be varied not only to keep out'the sun or light, but also to close thc'blind completely.

The samev etect is obtained with the arrangement as shown in Fig. 3, but with the advantage that the slats may be inclined to the right or to the left, or they may be completely closed.

To draw back the slats of the blind, first they are placed in such a way that looking at a side view they remain horizontal. Then crank 35 is operated so that on pulling cord 33 from right to left the last section of slats on being pushed by supports 9c run under the slats of the next section guided by the corresponding slides, repeating the same operation with the subsequent sections.

It is evident that when putting this invention into practice the most appropriate materials may be used as also modifications of constructive details may be made without, however, departing from the scope of the invention.

I claim:

l. A blind for a Window andthe like'having a straight opening, the blind being formed from a plurality of interconnected horizontal slats, a plurality of vertical supporting members suspended from the top of the window opening, the slats being pivotally connected to the vertical supporting members, the vertical supporting members being slidably mounted, means for sliding the vertical supporting members and the slats horizontally across the window opening to vary the width of the blind, and means for pivotally and manually turning the'slats to vary the inclination of the slats and the openings between successive slats.

2. The blind of claim 1,iin lwhich the slats are secured on both sides to a pair of vertical supporting members and are longitudinally slidably connected to each other to vary the width of the blind and to place the slats in overlapping position.

3. The blind of claim l, in which the slats are provided along their longitudinal edges with a groove having a slot on the lower side for slidable engagement with a part on an underlying adjacent slat. Y

References Cited in the iile of this patent UNITED STATES PATENTS 252,833. Bowslaugh Jan.l 24, 1882 1,577,293 OBrien Mar. 16, 1926 2,183,955,I Bean Dec. 19, 1939 FOREIGN PATENTS`V 263,884 Switzerland Dec. 16, 1949 

